23172003612 has 96 divisors (see below), whose sum is σ = 63749145600. Its totient is φ = 7253680896.

The previous prime is 23172003593. The next prime is 23172003623. The reversal of 23172003612 is 21630027132.

23172003612 is a `hidden beast` number, since 23 + 1 + 7 + 20 + 0 + 3 + 612 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 836439 + ... + 863697.

It is an arithmetic number, because the mean of its divisors is an integer number (664053600).

Almost surely, 2^23172003612 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23172003612, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31874572800).

23172003612 is an abundant number, since it is smaller than the sum of its proper divisors (40577141988).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

23172003612 is a wasteful number, since it uses less digits than its factorization.

23172003612 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27752 (or 27744 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 27.

The spelling of 23172003612 in words is "twenty-three billion, one hundred seventy-two million, three thousand, six hundred twelve".